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Finding the Fourth Proportional to 659.47, 910.11 and 364.73

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Solution

The fourth proportional to 659.47, 910.11 and 364.73 is: 503.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.47 : 910.11 = 364.73 : x
  2. Step 2: Convert to fraction form
    659.47/910.11 = 364.73/x
  3. Step 3: Cross multiply
    659.47x = 910.11 × 364.73
  4. Step 4: Simplify right side
    659.47x = 331,942.77
  5. Step 5: Solve for x
    x = 331,942.77/659.47
  6. Step 6: Final answer
    x = 503.35

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.